| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 250 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| February | 792 (Very high) | 0 (Low) | 20 (Low) | 1 (Low) | 0 (Low) |
| March | 403 (Very high) | 397 (Very high) | 16 (Low) | 6 (Low) | 0 (Low) |
| April | 8 (Low) | 8 (Low) | 23 (Low) | 43 (Medium) | 14 (Low) |
| May | 16 (Low) | 0 (Low) | 300 (Very high) | 71 (High) | 129 (Medium) |
| June | 7 (Low) | 0 (Low) | 213 (Very high) | 54 (High) | 55 (Medium) |
| July | 3 (Low) | 0 (Low) | 46 (Medium) | 5 (Low) | 10 (Low) |
| August | 1 (Low) | 0 (Low) | 5 (Low) | 3 (Low) | 2 (Low) |
| September | 1 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 2 (Low) |
| October | 5 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) |
| November | 22 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 165 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |